I have never done the Anomen romance, but I have done the Aerie, Viconia, and a few modded NPC romances, and typcially it just takes one bad conversation to ruin the romance. You might want to load to a point before the conversation to make certain you are still romancing him. If not that, then there are some cheats you can use via the debug mode to resume the romance.

I once did the Anomen romance in an ealier version of the game. If I remember correctly, you did kill the romance. vApor is right: all it takes is one conversation to ruin the romance. For that matter, all it takes is one bad answer. Hopefully you have a recent save to reload.

ive never done the male romances.. not interested lol so i dono i know the girls are touchie if you say the wrong thing once its over, just like real life sometimes Dx i just love to get all 3 girls in my party and watch them cat fight over me hahahah